The Woodside basketball team inadvertently summons an ancient Highlander warrior; Gretta and Baldric must come to Dwight's aid as he has fallen ill and cannot perform his duties as Woody the Woodchuck, Woodside's mascot.

Due to a magical birthday tradition, Chlodwig and Dwight switch bodies for the day; Gretta and Baldric try to aide the body swapped heroes as they venture through their days as one another.